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72766625020 = 22513127773521
BaseRepresentation
bin100001111000100111…
…0101001010011111100
320221211020020112220221
41003301032221103330
52143011224000040
653232321151124
75154140051545
oct1036116512374
9227736215827
1072766625020
1128950954431
121212948b4a4
136b2868a68b
14374422d4cc
151d5d45674a
hex10f13a94fc

72766625020 has 24 divisors (see below), whose sum is σ = 153976405968. Its totient is φ = 28884460800.

The previous prime is 72766624991. The next prime is 72766625027. The reversal of 72766625020 is 2052666727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72766625027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13884141 + ... + 13889380.

It is an arithmetic number, because the mean of its divisors is an integer number (6415683582).

Almost surely, 272766625020 is an apocalyptic number.

It is an amenable number.

72766625020 is an abundant number, since it is smaller than the sum of its proper divisors (81209780948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72766625020 is a wasteful number, since it uses less digits than its factorization.

72766625020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27773661 (or 27773659 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 72766625020 in words is "seventy-two billion, seven hundred sixty-six million, six hundred twenty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 27773521 55547042 111094084 138867605 277735210 555470420 3638331251 7276662502 14553325004 18191656255 36383312510 72766625020